Ted Olson is the former U.S. Solicitor General who fought high-profile cases like Bush v. Gore, the Supreme Court case that determined the 2000 presidential outcome. Now Olson is fighting for America's DREAMers, the young DACA recipients impacted by the Trump administration's policy. He joins Walter Isaacson to explain why he supports this cause.

President Trump and Congress are trying to hammer out a financial package to stave off the worst of the coronavirus economic impact and its effect on vulnerable workers. As Democrats prepared to try to reach a compromise with Republicans and the White House, Christiane spoke with Chair of the House Intelligence committee Adam Schiff about what the nation can expect.

According to government data, 10 women are killed every day in Mexico. On Sunday, to mark International Women's Day, tens of thousands marched to protest the Mexican government's inaction. On Monday, they took a giant leap forward, leaving offices and work spaces in a mass strike. Journalist Lydia Cacho joins Christiane to discuss this crucial moment in history.

Christiana Figueres, the architect of the 2015 Paris Agreement, has dedicated her life to climate policy. In her new book "The Future We Choose," she urges us to harness our technological, political and economic potential to create long-term solutions. In the face of the very real threat climate change poses to our planet, Figueres tells contributor Sheelah Kolhatkar why she doesn’t lose hope.

On one of the most stunning days since the global financial crisis of 2008, markets plunged so deeply that trading on the NYSE had to be briefly suspended. The last time oil prices plummeted so steeply was at the start of the first Gulf War. Economist Austan Goolsbee thinks things could still get "a heck of a lot worse." He joins Christiane to discuss the situation.

We've all seen the guidance about frequently washing our hands for 20 seconds, and have heard about panic-buying at supermarkets. But what's really going to keep us safe in the coronavirus outbreak? If anyone knows, it's Dr. Bruce Aylward. He is Senior Advisor to the Director-General of the World Health Organization and led the WHO’s team in China.

Yale law professor Daniel Markovits says the system that values hard work and promotes the American dream is in itself a sham. He is taking aim at the very structure that made him a success in his latest book, "The Meritocracy Trap." He joins Hari Sreenivasan to discuss.

Despite progress in key areas like the #MeToo movement, women's rights appear to be backsliding in much of the world. In her new book, Helen Lewis takes a look at the complicated, often deeply flawed heroes who broke through the barriers to give women the right to vote, divorce, work, and participate in team sports, among other advances. She discusses with Christiane.

Tyll Ulenspiegel is a German mythological figure who crosses political and social boundaries, exposing their hypocrisy. In his new novel, author and playwright Daniel Kehlmann brings this fictitious character to life against the backdrop of the Thirty Years' War, one of the darkest periods in Central European history. He tells Christiane how he immersed himself in this unusual world.

State Senator Peter Harckham is a freshman Democratic lawmaker who, during a news conference in January, unexpectedly admitted that he had battled with addiction. Harckham says he hit rock bottom in the 1980s, but he sought treatment and now, after more than 30 years sober, is leading a bipartisan task force combating the worsening opioid crisis in New York. He joins Michel to discuss this work.

History is repeating itself at Europe's border, as migrants are desperately trying to make their way from Turkey into Greece. Many of these migrants come from Syria, where airstrikes have caused civilians to flee their country. Greek Minister of State Giorgos Gerapetritis joins Christiane to discuss his country's role in the crisis.

After 18 years of war, an Afghanistan peace deal created on Saturday is already falling apart. Today, the Taliban is launching more attacks on civilians and Afghan security forces. Simultaneously we're seeing the fate of Syria play out, as Russian president Vladimir Putin and Turkish leader Recip Erdogan meet in Moscow. Experts Vali Nasr and Susan Glasser join Christiane to discuss.

Dr. W. Ian Lipkin is an infectious disease expert at Columbia University who is fresh out of quarantine after traveling to China, where he was studying the coronavirus outbreak. The virus has now infected nearly 94,000 people around the world with more than 3,000 deaths. Lipkin sits down with Walter Isaacson to explain how the virus spreads and how people can avoid catching it.

"The Plot Against America," a new HBO series based on the novel by Philip Roth, re-imagines what the past would have looked like if Charles Lindbergh had won the presidential election of 1940 instead of President Roosevelt. Creator David Simon joins Christiane to explain the vision behind the series.

Joe Biden stormed through Super Tuesday with an impressive comeback, but he still has to fend off a formidable opponent in Bernie Sanders if he wants to win the nomination. Former Obama campaign manager David Plouffe joins the program to discuss the Super Tuesday results and the future of the Biden campaign.

The U.S. is segregated, and so is pollution. These words come from the so-called "father of environmental justice," Robert Bullard. As a sociologist, he has proved that minority communities in Houston suffer most from pollution and has written more than a dozen books on sustainable development, environmental racism and climate justice. He sits down with Walter to discuss his life's work.

Environmentalist Bill McKibben was one of the first to sound the alarm about climate change. His message to the public is simple: We have already done lasting damage to the planet, and we need to take urgent action before the situation becomes irretrievable. He joins the program to explain how divestment efforts are affecting the fossil fuel industry.

Combatting the climate crisis will require enormous individual change as well as drastic changes to our global economic model. When Paul Polman was CEO of consumer goods giant Unilever, he was one of the first titans of commerce to recognize the environmental issue. He joins the program to discuss the role of businesses in climate change.

Raul Ortiz joined the U.S. Border Patrol in 1991, and later served in Afghanistan. Now - thanks to President Trump -- he's the Border Patrol's new Deputy Chief. Over his career, he's been responsible for Border Patrol operations in 41 Texas counties and has witnessed families being torn apart at the border. He sits down with Walter to discuss this and President Trump's immigration policy.

On Saturday, the U.S. signed a deal with the Taliban that it hopes will finally end America’s longest war, the conflict in Afghanistan. Next week, the Afghan government will finally start negotiating face to face with the Taliban. Adela Raz, Afghanistan's Ambassador to the U.N., joins Christiane to explain this complicated process.